The Tamron 13VG2811ASIR-SQ is a varifocal industrial lens designed for Day/Night security cameras. It uses special glass composites and anti-reflective coatings that allow these special cameras to focus accurately in infrared and visible light spectra. This lens comes ready for use with a 4-pin square connector on the auto iris cable.
| Mount | CS-Mount |
| Image Format | 1/3-Inch CCD |
| Focal Length | 2.8 mm to 11 mm Varifocal with Manual Setting |
| Aperture | f/1.6 ot f/360 |
| Iris Type | DC Auto Iris |
| Focus Type | Manual |
| Horizontal View Angle |
80° Horizontal Angle at 2.8 mm 25° Horizontal Angle at 11 mm |
| Minimum Object Distance (M.O.D.) | Not Specified by Manufacturer |
| Macro | No |
| Dimensions (WxHxD) | 1.5 x 1.5 x 2.1 Inches (40 x 40 x 53.6 mm) |
| Weight | 3.6 Oz (87 g) |